Domain Driven Design. Как писать простой код для сложных систем?Dmitry Pavlov
Нельзя просто так взять и написать простой код для сложной системы. Сколько бы мы не продумывали дизайн, наша стройная объектная модель начинает рушиться о суровую реальность требований. Через пару месяцев мы получаем множество неповоротливых объектов с набором полей под все сценарии использования. А ведь, еще вчера код был простой и понятный, архитектура стройна и без костылей. Откуда берется сложность? Как с ней бороться? Или это наш программистский крест? В мастер классе мы разберемся, как Domain Driven Design помогает разрабатывать объектную модель для сложных систем. Почему лучше иметь несколько контекстов использования классов? Почему 2-3 объекта для одной и той же бизнес-сущности это нормально? Почему важно говорить с бизнесом на едином языке и как явно выражать это в коде?
Осторожно, техническая сессия, много кода, боли и холиваров.
The document discusses early scientific ideas about matter and particles. It describes an ancient tale where six men were asked to identify an elephant in the dark by touch alone, with each man mistakenly identifying the part they touched. It also discusses how ancient Greeks believed all matter was made of four elements with different properties based on their composition. The document questions how scientists can know particles are real if they cannot be seen, and describes early models where particles of fluids were thought to be rounded and particles of solids jagged.
Domain Driven Design. Как писать простой код для сложных систем?Dmitry Pavlov
Нельзя просто так взять и написать простой код для сложной системы. Сколько бы мы не продумывали дизайн, наша стройная объектная модель начинает рушиться о суровую реальность требований. Через пару месяцев мы получаем множество неповоротливых объектов с набором полей под все сценарии использования. А ведь, еще вчера код был простой и понятный, архитектура стройна и без костылей. Откуда берется сложность? Как с ней бороться? Или это наш программистский крест? В мастер классе мы разберемся, как Domain Driven Design помогает разрабатывать объектную модель для сложных систем. Почему лучше иметь несколько контекстов использования классов? Почему 2-3 объекта для одной и той же бизнес-сущности это нормально? Почему важно говорить с бизнесом на едином языке и как явно выражать это в коде?
Осторожно, техническая сессия, много кода, боли и холиваров.
The document discusses early scientific ideas about matter and particles. It describes an ancient tale where six men were asked to identify an elephant in the dark by touch alone, with each man mistakenly identifying the part they touched. It also discusses how ancient Greeks believed all matter was made of four elements with different properties based on their composition. The document questions how scientists can know particles are real if they cannot be seen, and describes early models where particles of fluids were thought to be rounded and particles of solids jagged.
The document discusses the "Great Debate" of the 1920s between astronomers Harlow Shapley and Heber Curtis about the nature of nebulae. Shapley believed nebulae were just clouds of gas within the Milky Way, while Curtis argued they were separate island universes like our own galaxy. Though Shapley initially won the debate, later observations proved Curtis was correct - nebulae were indeed separate galaxies far outside the Milky Way, making the Universe much larger than previously thought.
The document discusses strategies for increasing audiences and civic engagement for opera performances. It describes how free broadcasts of opening night performances by the San Francisco Opera increased its household reach by over 48,000 potential new patrons over 5 years, with over 4,000 of those purchasing $1.4 million in tickets. It also outlines a plan by Opera Philadelphia to add 5,000 new households per year through broadcasts to increase ticket sales, and how the San Francisco Opera's Random Acts program gained over 14 million online views across 227 countries and increased donations to the opera by $500,000.
This document discusses how risks that do not show immediate effects can be identified. It aims to review non-ionizing radiation from mobile phone networks and issues in studying health hazards. It also explains how to evaluate a study based on the sample population used.
The document contains charts and graphs showing the growth of the Metropolitan Opera's Live in HD program between 2006-2013. It shows substantial increases in the number of countries, theaters, and total attendance for opera broadcasts during this period. Additional sections provide an overview of MoltoMedia's website, competitive advantages, customers/donors, and competitors in the media organization landscape.
Unit 7 mathemetical calculations for sciencemrrayner
This unit introduces learners to mathematical tools used in science disciplines. It covers algebraic techniques, trigonometry, and calculus. Learners will use these concepts to solve scientific problems involving topics like chemical bonding, electricity, voice recognition in forensics, and microbiological growth studies. The unit consists of three tasks assessing learners' abilities in these areas: Task 1 focuses on algebra with problems involving logarithms, indices, and equations; Task 2 involves circular measure, trigonometry, and real-life applications; Task 3 has learners applying calculus to problems regarding motion and rates of change. Completing the tasks successfully demonstrates learners' competency in using mathematical concepts to address scientific issues.
This document advertises an event for connecting employees through social media and collaboration tools. The two-day event will include presentations from experts on topics such as governance strategies, user adoption, collaboration tools, multi-language policies, and migrating to SharePoint 2010. Interactive sessions will allow attendees to discuss trends, challenges, and strategic developments for advanced intranets and portals. The event aims to provide insights for driving business growth and engagement through internal networks and platforms.
Quel est le retour sur investissement de mon site Internet ?CYB@RDECHE
Un site qui se veut performant doit idéalement être conçu par les internautes eux-mêmes ou, à défaut, s’approcher au maximum de ce qu’ils attendent. Pour cela, un site Internet s’appuie sur deux piliers : la connaissance des internautes et le respect des bonnes pratiques. Développer un site Web pour son entreprise demande de définir une stratégie digitale ainsi que des objectifs (communication, marketing…) et ce, afin d’évaluer les retours sur investissement...
Stratégie de contenu, Brand content, content marketing : Une introductionLise Bissonnette Janody
Stratégie de contenu, brand content, content marketing : trois termes qui se ressemble, qu'on utilise souvent de manière interchangeable, qui sont effectivement liés...mais pas tout à fait les mêmes. Alors, de quoi parle-t-on quand on parle de stratégie de contenu? De content marketing ou de brand content? C'est le sujet de cette présentation, que j'ai préparée pour le premier Content Strategy Meetup à Toulouse.
Este documento resume varias de las principales religiones del mundo, incluyendo cristianismo, islam, ateísmo, hinduismo, budismo y judaísmo. Describe brevemente las creencias fundamentales, orígenes e historia de cada una.
This document summarizes the design of a pre-tensioned prestressed concrete bridge and a post-tensioned two-way concrete slab. For the bridge, Tx70 girders were selected with 32 total girders and 1248 prestressing strands. The design met strength and serviceability requirements. For the slab, a 4-span slab with 24 prestressing strands in 6 bands of 4 strands each was designed. The final design stresses were below allowable limits. Work was distributed among group members for the bridge and slab designs, modeling, calculations, and reporting.
The document discusses the "Great Debate" of the 1920s between astronomers Harlow Shapley and Heber Curtis about the nature of nebulae. Shapley believed nebulae were just clouds of gas within the Milky Way, while Curtis argued they were separate island universes like our own galaxy. Though Shapley initially won the debate, later observations proved Curtis was correct - nebulae were indeed separate galaxies far outside the Milky Way, making the Universe much larger than previously thought.
The document discusses strategies for increasing audiences and civic engagement for opera performances. It describes how free broadcasts of opening night performances by the San Francisco Opera increased its household reach by over 48,000 potential new patrons over 5 years, with over 4,000 of those purchasing $1.4 million in tickets. It also outlines a plan by Opera Philadelphia to add 5,000 new households per year through broadcasts to increase ticket sales, and how the San Francisco Opera's Random Acts program gained over 14 million online views across 227 countries and increased donations to the opera by $500,000.
This document discusses how risks that do not show immediate effects can be identified. It aims to review non-ionizing radiation from mobile phone networks and issues in studying health hazards. It also explains how to evaluate a study based on the sample population used.
The document contains charts and graphs showing the growth of the Metropolitan Opera's Live in HD program between 2006-2013. It shows substantial increases in the number of countries, theaters, and total attendance for opera broadcasts during this period. Additional sections provide an overview of MoltoMedia's website, competitive advantages, customers/donors, and competitors in the media organization landscape.
Unit 7 mathemetical calculations for sciencemrrayner
This unit introduces learners to mathematical tools used in science disciplines. It covers algebraic techniques, trigonometry, and calculus. Learners will use these concepts to solve scientific problems involving topics like chemical bonding, electricity, voice recognition in forensics, and microbiological growth studies. The unit consists of three tasks assessing learners' abilities in these areas: Task 1 focuses on algebra with problems involving logarithms, indices, and equations; Task 2 involves circular measure, trigonometry, and real-life applications; Task 3 has learners applying calculus to problems regarding motion and rates of change. Completing the tasks successfully demonstrates learners' competency in using mathematical concepts to address scientific issues.
This document advertises an event for connecting employees through social media and collaboration tools. The two-day event will include presentations from experts on topics such as governance strategies, user adoption, collaboration tools, multi-language policies, and migrating to SharePoint 2010. Interactive sessions will allow attendees to discuss trends, challenges, and strategic developments for advanced intranets and portals. The event aims to provide insights for driving business growth and engagement through internal networks and platforms.
Quel est le retour sur investissement de mon site Internet ?CYB@RDECHE
Un site qui se veut performant doit idéalement être conçu par les internautes eux-mêmes ou, à défaut, s’approcher au maximum de ce qu’ils attendent. Pour cela, un site Internet s’appuie sur deux piliers : la connaissance des internautes et le respect des bonnes pratiques. Développer un site Web pour son entreprise demande de définir une stratégie digitale ainsi que des objectifs (communication, marketing…) et ce, afin d’évaluer les retours sur investissement...
Stratégie de contenu, Brand content, content marketing : Une introductionLise Bissonnette Janody
Stratégie de contenu, brand content, content marketing : trois termes qui se ressemble, qu'on utilise souvent de manière interchangeable, qui sont effectivement liés...mais pas tout à fait les mêmes. Alors, de quoi parle-t-on quand on parle de stratégie de contenu? De content marketing ou de brand content? C'est le sujet de cette présentation, que j'ai préparée pour le premier Content Strategy Meetup à Toulouse.
Este documento resume varias de las principales religiones del mundo, incluyendo cristianismo, islam, ateísmo, hinduismo, budismo y judaísmo. Describe brevemente las creencias fundamentales, orígenes e historia de cada una.
This document summarizes the design of a pre-tensioned prestressed concrete bridge and a post-tensioned two-way concrete slab. For the bridge, Tx70 girders were selected with 32 total girders and 1248 prestressing strands. The design met strength and serviceability requirements. For the slab, a 4-span slab with 24 prestressing strands in 6 bands of 4 strands each was designed. The final design stresses were below allowable limits. Work was distributed among group members for the bridge and slab designs, modeling, calculations, and reporting.
5. Channel Name yi yazıyoruz ve oradan da Launch free channel’e tıklıyoruz ve yeni bi üyelik alıyoruz.
6.
7. Go to Account Center’i tıklıyoruz ondan sonra Skip-Go to My Account’u tıklıyoruz.Web caster ‘i tıklıyoruz ve go live yide tıklarsak artık canlı yayın başlamış olur.